:root{--pt-primary: #4f46e5;--pt-primary-light: #6366f1;--pt-primary-dark: #4338ca;--pt-accent: #0ea5e9;--pt-sidebar-bg: #0f172a;--pt-sidebar-active: rgba(99, 102, 241, .18);--pt-page-bg: #f1f5f9;--pt-card-bg: #ffffff;--pt-text: #0f172a;--pt-text-secondary: #64748b;--pt-border: #e2e8f0;--pt-shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 20px rgba(15, 23, 42, .05);--pt-radius: 12px;--pt-radius-sm: 8px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100%}body{font-family:PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--pt-page-bg);color:var(--pt-text);-webkit-font-smoothing:antialiased}a{color:var(--pt-primary);text-decoration:none;font-weight:500;transition:color .15s}a:hover{color:var(--pt-primary-light)}.layout{display:flex;min-height:100vh}.sidebar{width:240px;flex-shrink:0;background:linear-gradient(180deg,#0f172a,#1e1b4b);color:#e2e8f0;display:flex;flex-direction:column;border-right:1px solid 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.btn-primary{width:100%;margin-top:8px;padding:12px;font-size:15px;letter-spacing:1px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}.stat-grid--4{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.stat-card{background:var(--pt-page-bg);border:1px solid var(--pt-border);border-radius:var(--pt-radius-sm);padding:16px 18px;transition:box-shadow .15s,border-color .15s}.stat-card--link{text-decoration:none;color:inherit;display:block}.stat-card--link:hover{border-color:var(--pt-primary-light);box-shadow:var(--pt-shadow);color:inherit}.stat-card__label{font-size:12px;color:var(--pt-text-secondary);margin-bottom:6px}.stat-card__value{font-size:28px;font-weight:700;line-height:1.1;color:var(--pt-text)}.stat-card--accent{border-left:3px solid var(--pt-accent)}.stat-card--success{border-left:3px solid #16a34a}.stat-card--warn{border-left:3px solid #d97706}.stat-card--danger{border-left:3px solid 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.page-card{height:100%}@media(max-width:960px){.dashboard-split{grid-template-columns:1fr}}.trend-legend{display:flex;gap:20px;margin-bottom:16px;font-size:13px;color:var(--pt-text-secondary)}.trend-legend__item{display:inline-flex;align-items:center;gap:6px}.trend-legend__dot{width:10px;height:10px;border-radius:2px}.trend-legend__dot--inbound{background:var(--pt-accent)}.trend-legend__dot--activated{background:#16a34a}.trend-chart{display:flex;align-items:flex-end;gap:8px;height:160px;padding-top:8px}.trend-chart__col{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;height:100%}.trend-chart__bars{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center;gap:4px}.trend-chart__bar{width:40%;min-height:2px;border-radius:3px 3px 0 0;transition:height 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